JPH0224069U - - Google Patents
Info
- Publication number
- JPH0224069U JPH0224069U JP10194888U JP10194888U JPH0224069U JP H0224069 U JPH0224069 U JP H0224069U JP 10194888 U JP10194888 U JP 10194888U JP 10194888 U JP10194888 U JP 10194888U JP H0224069 U JPH0224069 U JP H0224069U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- air
- cylinder
- valve
- fuel injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は、本考案の実施例に係る多気筒エンジ
ンの吸気装置の吸気通路部の断面図、第２図は同
一部切欠平面図、第３図は、本実施例のフアース
トアイドル制御で用いられる水温マツプである。
１ａ〜１ｄ……吸気マニホールド、２……エン
ジン本体、３……シリンダヘツド部、５ａ〜５ｄ
……吸気ポート、６……サージタンク、７ａ〜７
ｄ……吸気弁、８ａ〜８ｄ……燃料噴射弁、１１
ａ〜１１ｄ……エア導入部、１２ａ〜１２ｄ……
分岐通路部、１３……分配管、１４……エアバル
ブ、１５……メイン側エアバルブ通路、１６……
吸気通路、１７……スロツトル弁、１９……バイ
パス吸気通路、２０……電磁弁。
FIG. 1 is a sectional view of the intake passage of the intake system of a multi-cylinder engine according to an embodiment of the present invention, FIG. 2 is a partially cutaway plan view of the same, and FIG. This is the water temperature map used. 1a to 1d...Intake manifold, 2...Engine body, 3...Cylinder head part, 5a to 5d
...Intake port, 6...Surge tank, 7a~7
d...Intake valve, 8a-8d...Fuel injection valve, 11
a to 11d... air introduction section, 12a to 12d...
Branch passage section, 13... Distribution pipe, 14... Air valve, 15... Main side air valve passage, 16...
Intake passage, 17... Throttle valve, 19... Bypass intake passage, 20... Solenoid valve.
Claims (1)
筒エンジンにおいて、アイドル運転時における吸
気量調整用の吸気バイパス通路と当該エンジンの
冷間時各気筒毎に暖機を目的とした増量吸気を供
給するエアバルブ通路とを共にスロツトル弁を迂
回した状態で相互に並列に設ける一方、上記エア
バルブ通路下流端を上記各気筒の燃料噴射弁のエ
アアシスト口部に各々分岐して開口連通させる一
方、上記吸気バイパス通路下流端を上記スロツト
ル弁下流の吸気通路集合部に開口連通させたこと
を特徴とする多気筒エンジンの吸気装置。 In a multi-cylinder engine that is equipped with an independent fuel injection valve for each cylinder, an intake bypass passage is used to adjust the amount of intake air during idling operation, and an increased amount of intake air is supplied to each cylinder for the purpose of warming up when the engine is cold. The air valve passages are provided in parallel with each other, bypassing the throttle valve, and the downstream ends of the air valve passages are branched and communicated with the air assist openings of the fuel injection valves of the respective cylinders, while the intake air An intake system for a multi-cylinder engine, characterized in that a downstream end of a bypass passage is opened and communicated with an intake passage gathering portion downstream of the throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10194888U JPH0636294Y2 (en) | 1988-07-30 | 1988-07-30 | Multi-cylinder engine intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10194888U JPH0636294Y2 (en) | 1988-07-30 | 1988-07-30 | Multi-cylinder engine intake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0224069U true JPH0224069U (en) | 1990-02-16 |
| JPH0636294Y2 JPH0636294Y2 (en) | 1994-09-21 |
Family
ID=31331406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10194888U Expired - Lifetime JPH0636294Y2 (en) | 1988-07-30 | 1988-07-30 | Multi-cylinder engine intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636294Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271562A (en) * | 1990-03-22 | 1991-12-03 | Hitachi Ltd | Intake air passage of internal combustion engine |
-
1988
- 1988-07-30 JP JP10194888U patent/JPH0636294Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271562A (en) * | 1990-03-22 | 1991-12-03 | Hitachi Ltd | Intake air passage of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0636294Y2 (en) | 1994-09-21 |